How Trampoline Hook Elements Prevent Strap Wear

A design for a trampoline hook that separates the two ends of a support strap to prevent them from rubbing together and wearing out.

What it covers

This patent describes a specific hook design used to attach a trampoline jumping sheet to its frame. Instead of a single loop or attachment point, the hook contains two distinct receiving sections separated by a fastening web. By forcing the two ends of the elastic strap to sit in separate channels, the design prevents the strap material from rubbing against itself during use. This reduction in friction significantly decreases wear and tear on the straps, which are the most common point of failure in high-end trampolines.

What it doesn't cover

• —Does not cover trampolines that use metal springs instead of elastic strap sections.
• —Does not cover hook designs where the strap ends are allowed to touch or overlap.
• —Does not cover jumping sheets that attach directly to the frame without using a hook element.

The clever bit

The innovation is the use of a physical barrier (the fastening web) to force a separation between the two ends of a single loop, effectively eliminating self-abrasion at the point of highest stress.

Why it matters

Trampolines used for fitness, such as those sold by Bellicon, rely on high-tension elastic cords for a smooth bounce. Because these cords are constantly stretching and retracting, they are prone to fraying if they rub against themselves. This patent protects a mechanical solution that increases the longevity of these components, which is a key selling point for premium exercise equipment.

Real-world examples

• 1.Bellicon premium fitness trampolines
• 2.High-end rebounders with elastic cord suspension systems